Rear end length question

[JSutphin]

Im installing 9'' housing ends on an 8.8 and Im trying to find out a specific length. I'm using the Strange late model big Ford housing ends and Wilwood rear disc brakes.I want to know the distance between the mating surface of the housing end to the axle face, where the rotor and wheel will mount. This is a necessary measurement for me to know to get the width I want.

I apologize for the rough descriptions above. If I just ordered my axles I would be golden, but I dont want to order a set and then send them back out to be cut and/or resplined after the fact because I suspect I will be cutting off 1 - 2 inches per side. And will that this length change manufacturer to manufacturer? Or a standard ?

Joe

[CDR Performance]

Depend on the brakes. There are several spacings within the same brakes depending upon set up.

Since you have hat and rotors you need to measure the spacing and then order axles.
The typical Torino spacing is 2.5 for disc and 2.75 for drum but you have Wilwoods..............

[JSutphin]

Correct if me if Im wrong here. So i need to measure the thickness of the rotor hat and add that to 2.5" ?

[wikd69]

Here is what I drew up when I put new ends on my 12-bolt and hung the new Aerospace disc kit on it.

Wilwood should be able to tell you what the offset needs to be between the end of the axle and the face of the housing end. In this case, for the Aerospace brakes I was hanging, it was 2.75". Once you know that, you're gold. Of course, knowing how wide your new wheelbase is, what backspace on what rims for what size tires, all of that is required, but once you've mapped this stuff out, you can determine any of your dimensions.

Your mileage, of course, will vary. Hope this helps

[JSutphin]

The diagrams are a big help. Thank you.

[JSutphin]

Just wanted to get opinions about my findings. Now let me say, I got these parts from my father's project that just never materialized a few years back. Now, Im trying to put them to good use.

Brakes - Wilwood ProStreet #140-2274 (found no record of this part #) box is labeled with Big Ford (doesnt list late or old style) / 2.36 offset

Housing Ends - Strange part# H-1135 Early B.F. style

What Im asking myself now is, for axle length. Do I calculate for the 2.36 offset or is there additional clearance I need to account for?
And, for total width I need to account for the brake offset and say the .25" on each side for the rotor hats ? is that it ?

[wikd69]

Just wanted to get opinions about my findings. Now let me say, I got these parts from my father's project that just never materialized a few years back. Now, Im trying to put them to good use.

Brakes - Wilwood ProStreet #140-2274 (found no record of this part #) box is labeled with Big Ford (doesnt list late or old style) / 2.36 offset

Housing Ends - Strange part# H-1135 Early B.F. style

What Im asking myself now is, for axle length. Do I calculate for the 2.36 offset or is there additional clearance I need to account for?
And, for total width I need to account for the brake offset and say the .25" on each side for the rotor hats ? is that it ?

Hit this site for information on the brakes, offsets and what not. Look down in the second table on the page.

http://www.revolutionbrake.com/wilwood_rear_pro.html

What axles are you going to use ? Rather, who's axles ? Moser, Strange, other ?

I'm betting that if you have your housing length, know the offset for the brakes, and whether or not the pumpkin is centered, calling your vendor of choice would be the answer. I'm sure Moser, Strange, etc., field these questions every day and they could tell you pretty quickly what your axle length should be.

my 2c...